Aug 19 14:23:18 gotlib postfix/smtp: certificate verification failed for smtp.gmail.com[184.108.40.206]:587: untrusted issuer /C=US/O=Equifax/OU=Equifax Secure Certificate Authority
This one seems to be easily solved by:
sudo cp /usr/share/ca-certificates/mozilla/Equifax_Secure_CA.crt /etc/postfix/cacert.pem
The following was a bit more tricky:
Aug 19 14:23:19 gotlib postfix/smtp: A6E401E4A1: to=
, relay=smtp.gmail.com[220.127.116.11]:587, delay=0.74, delays=0.01/0/0.73/0, dsn=4.7.1, status=deferred (SASL authentication failed; server smtp.gmail.com[18.104.22.168] said: 535-5.7.1 Username and Password not accepted. Learn more at ?535 5.7.1 http://mail.google.com/support/bin/answer.py?answer=14257 k6sn951170rej.1)
I went to the above link, then followed to:
It seems everything is back to normal !
One more thing, to flush all email stored in /var/spool/postfix/deferred, simply type:
I love postfix !